Compressed-air hydraulic pump.



A. MARlOTTI.

COMPRESSED AIR HYDRAULIC PUMP.

APPLICATION FILED MAR. 3o. 1914.

1,155,594. Patented oet. 5, 1915.

7 SHEETS-SHEET l.

wrom: WIM/5655s: NVE

AfTV

A. MARIOTTI.A

COMPRESSED AIR HYDRAULIC PUMP.

APPLICATION man MAR. so. 1914.

1,155,594, Patented 0@t.5,1915. Y

7 SHEETS-SHEET 2.

A. MARIOTTI. COMPRESSED AIR HYDRAULIC PUMP.

APPLICATION FILED MAR. 30. |914.

1,155,59. Patented oet. 5, 1915.

7 SHEETS-SHEET 3- 6m MWI/Lazzi' y/WMM A. MARIOTTI.

COMPRESSED AIR HYDRAULIC PUMP.

APPLICATION FILED MAR. 30. 1914.

1,155,594. Patented Im. 5,1915.

7 SHEETS-SHEET 4.

COLUMBIA PLANOGRAPH :20..WASHING-r0N. D. c.

A. MARIOTTI.

COMERESSED AIR HYDRAULIC PUMP.

APPLICATION FILED MAR. 30. I9I4.

1,155,594., Patented Oct. 5, 1915.

7 SHEETS-SHEET 5.

/v VENTO/Q; W/T/VEJSEJ/ ATTV A. MAHIOTTI.

COMPRESSED AIR HYDRAULIC PUMP.

APPLlc/moN FILED MAR. 3o. 1914.

1,155,594. Patented 001;. 5, 1915.

7 SHEETS-SHEET 6.

M @I mzz' 555% www v ATT9 COLUMBIA PLANQGRAPM co.,wAsHxNGToN, D. c.

A. MARIOTTI.

COMPRESSED AIR HYDRAULIC PUMPI APPLICATION FILED MAR. 30. I9I4.

1,155,594. Patented ct. 5.1915.

7 SHEETS-SHEET 7.

VV/T/VEJJFJI /A/VENTO,

fm my? am@ Jim J/vjaman l l 67%77//61/6cM/M/ ATTY CDLUMBIA PLANOURAPH co., WASHINGTON. D. C.

'AirrI'LIoY Manier-r1, or FLORENCE, ITALY.

CMPRSSED-AIR HYDRAULIC PUMP.

Specification of Letters Patent.

Patented Oct. 5, 1915.

Application led March 30, 1914. Serial No. 828,203.

Totall whom it may concern:

Be it known that I, ATTILIO MARiofrTI, subject of King of Italy, residing at Florence, Italy, have invented new and useful improvements in Compressed-,Air Hydraulic Pumps,'of which the following is a speci- This apparatus serves for raising water or any otherl liquid, from any depth whatever. ,It is therefore specially applicable for mine shafts and may withV great advantage replace ordinary suction pumps, or

Y that a single Ashaft or wellmight, at the same time, serve for several buildings, and that a single pump might, at the same time, draw water from several. shafts ornwells.

The apparatus is illustrated in the accompanying drawings and is constructed and operates in the following manner:-C

Figures l and 2 illustratesgthe complete apparatus fixed in position and Figs. 3 tov V8 inclusive detail views thereof. Ity cornprises: a doublesacting coimgiressor` a (Fig. l), a quick-acting reversing chest b, Joined to the compressor, which serves for distriba uting and re-using the compressed air; two cylindrical receptacles o,- cl, (Fig. imf mersed inthe liquid to be raised; two tubes e, f,- which, through the chest b, pla-ce the compressor in communication with the receptacles c,4 el, and f a thirdV tube g,v by which the lidu'idis raised and ejected. The compressor iny the to and froV `movement which is imparted thereto by suitable known organs (fly wheel t, cnnectiiig rod z', crank Jr, ete., Figs. 3, l) drawsn in a-ii alternately Vthrough valvesV Z,- fna-which through theV tube n communicate with the chest and ejeet itin turnthrough the valves 0` p", which through the tube :(j-c'ommon to bothfcomniunicate also the chest (Figs. iY

The quick-'acting reversing' chest, illustrttted Vxau detail ini Figs. 5, 6, zand 8', effects the principal essential ep'leiatiii, the charaet'eristie of which is that `of disttiting' and simultaneously refusing the compressed Y ber u.

air. It is composed of four entirely distinct chambers r, s, t, u, (Fig. 6) the two central chambers s, t, communicate with one or other of the end chambers r, a, and that in an alternating manner, dependent upon the first position occupied by the two double seated valves o, '2.0, for the operation of the organs which are situated in the cham- The movement of these valves is obtained by very rapid reversal eected in the following manner: The helicoidal gear wheel ai is operated by a worm g/ (Fig. 4t) keyedto one extremity ofthe crank shaft.; at each revolution of the iywheel there will be a complete rotation of the worm andthe displacement of one tooth of the wheel fc, which transmits its movement tothe disk z (Fig. 6). This disk for one half of its Cir cumference is of uniform level, while for the other half it recedes on an inclined plane. The disk a in rotating with the Vwheel w will cause its pressure to be gradually exerted on the two smallV pins l, 2, and consequently on the springs 3, 4., so that while one spring will be already completely)7 compressed and will remain so for 180,the other will distend gradually, until after 180", it. will attain the maximum. At this moment, the small pin corresponding' to the spring which Vhas remainedentirely com* pressed for 180, will be situated at that point of the disk a which descends from the maximum to the minimum level, and the spring will distend, causing the beam 5 (Figs. and 7) to turn rapidly, through a given angle, and to thus displace the val-ves o, to. It is apparent that, under the rotation of the disk e, the effect will in the same way be repeated', but in the reverse order, for the springs 8, 4, and, consequently for the valves fv, w; so that when the opening G is closed, 7 will be also closed, and 8 and 9 be open, and conversely. In order to prevent the movement of the disk taking place also in the opposite direction, aeatch 17 (Fig- 6)' is provided in a suitable position.-

Now, from Fig. 2 it evidently follows that by subinerging the receptacles c, d, in the liquid, the valves l0, l1, will be spontaneoiisl-yfraised, permittingthe liquid to till the receptacles, and through the valves 12, 13, tol attain in the tube g, a level equal to lthat ofthe outer liquid. Under these conditions', when the compressor operates, the comthe opening pressed air, which throughtube g (Figf-l) passes to the distributing chest (Fig. 6), Will arrive in chamber t, and by opening 9 will pass into the other chamber r, whence, through the opening 14 (Fig. 5) to which tube e (Figs. l and 2) is attached, it Will i reach the surface ol' theV liquid inthe receptacle c. Itis evident that the liquid VWill be compelled to rise in the tube g to the same number of tenths of meters as there are atmospheric pressures attained by the ccmpressor. During this period the suction valves Z, m, (Fig. 4t) which, through the tube n open into chamber s, will, through 8, be in communication with the chamber u, which, through opening (Fig. to which tube f (Figs. lv and 2) is connected, leads to the receptacle d. W'hen the receptacles e, cl, shall be both full of liquid, and this will take place on the first occasion only, the compressor Will, throughthe tube n, draw in external air through the auxiliary valve 16 (Fig. 6) which opens into chamber s. period, the receptacle c Will empty Vitself oi" liquid; but, with the movement of the compressor that of all the other organs will occur, including that of the Worm y (Fig. ll), the Wheel a@ and the disk e (Fig. 6) which act on the springs 3,v 4i. The number of y teeth of the .Wheel ai is calculated so that it will have completed a half rotation -when one of the receptacles has'been emptied of the liquid. But the disk .e will, at the same time, have rotated 1.80", vso that the release of the spring, With the relative displacement of the valves fv, fw, will take place V,When one of the receptacles has been emptied of its liquid. It will therefore occur that thesuction and compression passages Will become reversed, because the communications of the tWo middle chambers with the two outer chambers will be inverted. But, as the receptacle which has been emptied of its liquid has remained filled With compressed air, this air will fill the chambers (Fig. 6) and Will fix the 'auxiliary valve 16; from this moment the compressor Will no longer draiv in air from the exterior, but that which finds itself confined in one or other of the receptacles c, al, with a manifestly great economy of motive power.

It is evident that this apparatus Will also operate in tubular Wells. We may, in fact, give to the cylindrical receptacles c, cl, any capacity (it is only necessary that the number of teeth ol the Wheel a@ should be in ac` cordance with such capacity), and they may be also of any diameter desired. l

When the apparatus is intended for use for great depths (mines, &c.),as it Will be necessary to employ high pressuresv and there'will also be proportionateheating oi' the ccmpressed air, vthe compressor will be composed of tWo cylinders in series, which During thi sl might be cooled by the Water. Wliiohhas itself been drawn up and ejected.

1What I claim as my invention, and desire to secure by Letters Patent, is V i. In an apparatus of the class described,

the combinationl of a pair of Water reser- Y compartments and a pair of intermediate compartments, each intermediate compartment having alining ports communicatingV With the terminal compartments, airY pipes connecting the terminal compartments of the said valve chamber with the respective Water reservoirs, a compressor', includingfthe cylA inder and a movable compressing element operating in the cylinder, a suction pipe con# vors, a discharge for said reservoirs,a revcrsing valve chamber, Vhaving terminal soY necting the'cylinder With oneintermediateV A pipe, 4a Vpipe for compressed air connecting compartment of the said valvechambei',a check valve providedin the last named pipe, a valve stem extending through each of the intermediate compartments of the reversing:

valve chamber and the alining ports thereof,

a double-headed valve plug mounted uponY each stem within'the ,corresponding'interme diate compartment, the heads of each plug being adapted alternately toseat against the opposite ends of the receiving "compartment to close the corresponding ports during movement oi' thestem, and means associated with the compressing element of the compresser for imparting movement in opposite Vcompartment of the reversing valve chamber, a check valve Vprovided in the suction Athe cylinder with the other intermediate ,i

roo

directions to both valve stemsV of the revers-YV ing valve chamber at regular intervals during thel operation of the compressor. 2. In an apparatus of the class described,

the combination ofa pair of Water reseil-4 voirs,pa discharge for said reservoirs, a Vreversing valve Y chamber, having terminalV compartments and a pair of Vintermediate compartments, each intermediate compartment having alining ports communicating with the terminal compartments, air pipes connecting the. terminal compartments,V of the said valve chambervvith therespective Water reservoirsa "compressor including a cylinder and a movable compressing element operating in the.cylinder,a suction pipe connectin'g the cylinder with one intermediatel compartment of the reversing valve chamii s plu against the opposite ends of the receiving compartments to close the corresponding ports during movement of the stem, a rocking beam pivotally mounted Within one terminal compartment of the reversing valve chamber and having its ends pivotally conected with the valve stems, resilient means for normally maintaining the valve stems co-extensive With the plugs disposedin neutral position between seats, radial pins provided lixedly upon the valve stems, an operating shaft journaled in the valve chamber, a cam disk mounted fixedly upon the said shaft Within the chamber and having an annular iange provided with semi-arca ate, axially inclined cam faces for engagement With the said pins, and means connecting the said operating shaft with the compressing element of the compressor for rotating" the shaft synchronously With the operation of the said element. Y

V3. In an apparatus of the class described, the combination of a pair of Water reservoirs, a discharge for said reservoirs, a reversing valve chamber, having terminal compartments and a pair of intermediate compartments, each 4intermediate compartment having alining ports communicating with the terminal compartments, air pipes connecting the terminal compartments of the said valve chamber With the respective Water reservoirs, a compressor including a cylinder and a movable compressing element op-Y erating in the cylinder, a suction pipe connecting the cylinder with one intermediate compartment of the reversing valve chamber, a check valve provided in the suction pipe, a pipe for compressed air connecting the cylinder With thev other intermediate being adapted alternately to seat,

compartment of the said valve chamber, a check valve provided in the last named pipe,

`a valve stem extending through each of the intermediate compartments of the reversing valve chamber and the alining ports thereof,- a double headed valve plug mounted upon each stem Within the corresponding intermediate compartment, the heads of each plug being adapted alternately to seat against the opposite ends of the receiving compartments to close the corresponding ports during movement of the stem, a rocking beam pivotally mounted Within one terminal compartment of the reversing valve chamber and having its ends pivotally connected with the Vvalve stems, resilient `means for normally maintaining the valve stems co-extensive With theplugs disposed in neutral position between seats, radial pins provided Iixedly upon the valve stems, an operating shaft 'journaled in the valve chamber, a cam disk mounted fixedly upon the said shaft Within the chamber and having an annular ange providedA With semi-arcuate, axially inclined cam faces for engagement With the said pins, a gear Wheel mounted loose upon the operating shaft, pavvl and ratchet mechanism connecting the gear Wheel With the shaft for rotation together in one direction, and means connecting the gear Wheel With the compressing element of the compressor for movement therewith.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

` DOTT. ATTILIO MARIOTTI.

Witnesses:

BRUNO MANNUcoI, WILLIAM W. BUn'r.

Uopies of this patent may be obtained for ve cents each, by addressing the "Commissioner of Patents. Washington, D. C. 

